gtk2/gtk/gtkvbbox.c
Federico Mena Quintero 80581c3011 Fixes #136082 and #135265, patch by Morten Welinder.
2004-03-05  Federico Mena Quintero  <federico@ximian.com>

	Fixes #136082 and #135265, patch by Morten Welinder.

	* configure.in: Use AC_SYS_LARGEFILE.

	* */*.c: #include <config.h>
2004-03-06 03:38:59 +00:00

309 lines
7.8 KiB
C

/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include <config.h>
#include "gtkvbbox.h"
static void gtk_vbutton_box_class_init (GtkVButtonBoxClass *klass);
static void gtk_vbutton_box_init (GtkVButtonBox *box);
static void gtk_vbutton_box_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_vbutton_box_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static gint default_spacing = 10;
static GtkButtonBoxStyle default_layout_style = GTK_BUTTONBOX_EDGE;
GType
gtk_vbutton_box_get_type (void)
{
static GType vbutton_box_type = 0;
if (!vbutton_box_type)
{
static const GTypeInfo vbutton_box_info =
{
sizeof (GtkVButtonBoxClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_vbutton_box_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkVButtonBox),
0, /* n_preallocs */
(GInstanceInitFunc) gtk_vbutton_box_init,
};
vbutton_box_type =
g_type_register_static (GTK_TYPE_BUTTON_BOX, "GtkVButtonBox",
&vbutton_box_info, 0);
}
return vbutton_box_type;
}
static void
gtk_vbutton_box_class_init (GtkVButtonBoxClass *class)
{
GtkWidgetClass *widget_class;
widget_class = (GtkWidgetClass*) class;
widget_class->size_request = gtk_vbutton_box_size_request;
widget_class->size_allocate = gtk_vbutton_box_size_allocate;
}
static void
gtk_vbutton_box_init (GtkVButtonBox *vbutton_box)
{
/* button_box_init has done everything allready */
}
GtkWidget*
gtk_vbutton_box_new (void)
{
GtkVButtonBox *vbutton_box;
vbutton_box = g_object_new (GTK_TYPE_VBUTTON_BOX, NULL);
return GTK_WIDGET (vbutton_box);
}
/* set default value for spacing */
void
gtk_vbutton_box_set_spacing_default (gint spacing)
{
default_spacing = spacing;
}
/* set default value for layout style */
void
gtk_vbutton_box_set_layout_default (GtkButtonBoxStyle layout)
{
g_return_if_fail (layout >= GTK_BUTTONBOX_DEFAULT_STYLE &&
layout <= GTK_BUTTONBOX_END);
default_layout_style = layout;
}
/* get default value for spacing */
gint
gtk_vbutton_box_get_spacing_default (void)
{
return default_spacing;
}
/* get default value for layout style */
GtkButtonBoxStyle
gtk_vbutton_box_get_layout_default (void)
{
return default_layout_style;
}
static void
gtk_vbutton_box_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkBox *box;
GtkButtonBox *bbox;
gint nvis_children;
gint child_width;
gint child_height;
gint spacing;
GtkButtonBoxStyle layout;
box = GTK_BOX (widget);
bbox = GTK_BUTTON_BOX (widget);
spacing = box->spacing;
layout = bbox->layout_style != GTK_BUTTONBOX_DEFAULT_STYLE
? bbox->layout_style : default_layout_style;
_gtk_button_box_child_requisition (widget,
&nvis_children,
NULL,
&child_width,
&child_height);
if (nvis_children == 0)
{
requisition->width = 0;
requisition->height = 0;
}
else
{
switch (layout)
{
case GTK_BUTTONBOX_SPREAD:
requisition->height =
nvis_children*child_height + ((nvis_children+1)*spacing);
break;
case GTK_BUTTONBOX_EDGE:
case GTK_BUTTONBOX_START:
case GTK_BUTTONBOX_END:
requisition->height =
nvis_children*child_height + ((nvis_children-1)*spacing);
break;
default:
g_assert_not_reached();
break;
}
requisition->width = child_width;
}
requisition->width += GTK_CONTAINER (box)->border_width * 2;
requisition->height += GTK_CONTAINER (box)->border_width * 2;
}
static void
gtk_vbutton_box_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkBox *base_box;
GtkButtonBox *box;
GtkVButtonBox *hbox;
GtkBoxChild *child;
GList *children;
GtkAllocation child_allocation;
gint nvis_children;
gint n_secondaries;
gint child_width;
gint child_height;
gint x = 0;
gint y = 0;
gint secondary_y = 0;
gint height;
gint childspace;
gint childspacing = 0;
GtkButtonBoxStyle layout;
gint spacing;
base_box = GTK_BOX (widget);
box = GTK_BUTTON_BOX (widget);
hbox = GTK_VBUTTON_BOX (widget);
spacing = base_box->spacing;
layout = box->layout_style != GTK_BUTTONBOX_DEFAULT_STYLE
? box->layout_style : default_layout_style;
_gtk_button_box_child_requisition (widget,
&nvis_children,
&n_secondaries,
&child_width,
&child_height);
widget->allocation = *allocation;
height = allocation->height - GTK_CONTAINER (box)->border_width*2;
switch (layout)
{
case GTK_BUTTONBOX_SPREAD:
childspacing = (height - (nvis_children * child_height)) / (nvis_children + 1);
y = allocation->y + GTK_CONTAINER (box)->border_width + childspacing;
secondary_y = y + ((nvis_children - n_secondaries) * (child_height + childspacing));
break;
case GTK_BUTTONBOX_EDGE:
if (nvis_children >= 2)
{
childspacing = (height - (nvis_children*child_height)) / (nvis_children-1);
y = allocation->y + GTK_CONTAINER (box)->border_width;
secondary_y = y + ((nvis_children - n_secondaries) * (child_height + childspacing));
}
else
{
/* one or zero children, just center */
childspacing = height;
y = secondary_y = allocation->y + (allocation->height - child_height) / 2;
}
break;
case GTK_BUTTONBOX_START:
childspacing = spacing;
y = allocation->y + GTK_CONTAINER (box)->border_width;
secondary_y = allocation->y + allocation->height
- child_height * n_secondaries
- spacing * (n_secondaries - 1)
- GTK_CONTAINER (box)->border_width;
break;
case GTK_BUTTONBOX_END:
childspacing = spacing;
y = allocation->y + allocation->height
- child_height * (nvis_children - n_secondaries)
- spacing * (nvis_children - n_secondaries - 1)
- GTK_CONTAINER (box)->border_width;
secondary_y = allocation->y + GTK_CONTAINER (box)->border_width;
break;
default:
g_assert_not_reached();
break;
}
x = allocation->x + (allocation->width - child_width) / 2;
childspace = child_height + childspacing;
children = GTK_BOX (box)->children;
while (children)
{
child = children->data;
children = children->next;
if (GTK_WIDGET_VISIBLE (child->widget))
{
child_allocation.width = child_width;
child_allocation.height = child_height;
child_allocation.x = x;
if (child->is_secondary)
{
child_allocation.y = secondary_y;
secondary_y += childspace;
}
else
{
child_allocation.y = y;
y += childspace;
}
gtk_widget_size_allocate (child->widget, &child_allocation);
}
}
}